Concentration determination apparatus and concentration determination method for detecting an absorbance of living body tissue based on a light intensity and measuring a concentration of a measured component contained in living body tissue
First Claim
Patent Images
1. A concentration determination apparatus comprising:
- a storage body that holds liquid;
a temperature control plate having one surface configured for close contact to a living body tissue and another surface contacting the liquid;
a first input light guide configured for causing a first incident light to be incident on the storage body;
a first light receiving light guide configured for receiving a reference light transmitted through the liquid from the first input light guide;
a second input light guide configured for causing a second incident light to be incident on the living body tissue;
a second light receiving light guide configured for receiving a measurement light from the second input light guide via the living body tissue;
a photodiode configured for detecting a light intensity of the reference light and a light intensity of the measurement light; and
an operator comprising;
an absorbance calculator configured for calculating an absorbance of the liquid and an absorbance of the living body tissue based on the light intensity of the reference light and the light intensity of the measurement light, anda concentration calculator configured for comparing the absorbance of the liquid with the absorbance of the living body tissue and calculating a concentration of a measured component in the living body tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
A concentration determination apparatus in accordance with exemplary embodiments has a storage body and a temperature control plate. The concentration determination apparatus may also have a first and second input light guide and a first and second light receiving light guide, and an operational unit that contains an absorbance calculation device for calculating an absorbance of liquid and living body tissue and a concentration calculation device for comparing the absorbance of the liquid and the living body tissue.
-
Citations
10 Claims
-
1. A concentration determination apparatus comprising:
-
a storage body that holds liquid; a temperature control plate having one surface configured for close contact to a living body tissue and another surface contacting the liquid; a first input light guide configured for causing a first incident light to be incident on the storage body; a first light receiving light guide configured for receiving a reference light transmitted through the liquid from the first input light guide; a second input light guide configured for causing a second incident light to be incident on the living body tissue; a second light receiving light guide configured for receiving a measurement light from the second input light guide via the living body tissue; a photodiode configured for detecting a light intensity of the reference light and a light intensity of the measurement light; and an operator comprising; an absorbance calculator configured for calculating an absorbance of the liquid and an absorbance of the living body tissue based on the light intensity of the reference light and the light intensity of the measurement light, and a concentration calculator configured for comparing the absorbance of the liquid with the absorbance of the living body tissue and calculating a concentration of a measured component in the living body tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification